My proposition is this: A vast number of Americans who oppose legalization and fear new waves of immigration would change their minds if we could radically reduce new - i. e., future - illegal immigration. Forget employer sanctions. Build a barrier. It is simply ridiculous to say it cannot be done. If one fence won't do it, then build a second 100 yards behind it. And then build a road for patrols in between. Put in cameras. Put in sensors. Put out lots of patrols.